A Zn-doped Ni-based metal−organic framework (Ni-MOF) material with honeycomblike hierarchical spherical structure is synthesized by a microwave-assisted method using HCl as the modulator for the first time. By adjusting the amount of the Zn ions doped, an optimal Zn doped Ni-MOF electrode material is obtained, which possesses a superior electrochemical performance: Capacity of 237.4 mA h g^-1 and 122.3 mA h g^-1 at 1 A/g and 20 A/g, respectively. This is one of the highest performances reported so far for MOFs. The excellent electrochemical properties are ascribed to the unique crystal structure and special morphology of the Zn-doped Ni-MOF material. This work shows that the microwave-assisted synthesis is a rapid and efficient method for preparation of Ni-MOF supercapacitor electrode material.

首次采用HCl作为调制剂，通过微波辅助方法合成了具有蜂窝状分层球形结构的Zn掺杂Ni基金属有机骨架（Ni-MOF）材料。通过调节Zn离子的掺杂量，可以获得最佳的Zn掺杂Ni-MOF电极材料，该材料具有优异的电化学性能：容量分别为237.4 mA h g ^-1和122.3 mA h g ^-1分别为1 A / g和20 A / g。这是迄今为止报告的MOF最高的性能之一。优异的电化学性能归因于掺杂Zn的Ni-MOF材料的独特晶体结构和特殊形态。这项工作表明，微波辅助合成是制备Ni-MOF超级电容器电极材料的一种快速有效的方法。